Design and experimental study of non-contact self-integration D-dot circumferential angle sensor
According to the development needs of smart grid for advanced sensing and measurement technology and the needs of grid voltage monitoring in different scenarios,D-dot sensor based on electromagnetic coupling measure-ment principle can realize the non-contact measurement of grid voltage,which,as an important device for obtaining voltage signals from the grid,will influence the effect of the whole measurement system.In order to solve the prob-lem that the D-dot sensor has only one single measurement direction,as well as to fulfill the requirements of the in-stallation angle and other issues,in this paper,the basic principle and differential input structure of the D-dot sen-sor are discussed in depth,and the segmentation of the electrode and the synthesis law of the vector under the cou-pled magnetic field are investigated.Finally a new design of the D-dot circumferential angle sensor under the self-integrating operating state is proposed and experimentally verified by the finite element simulation software with the aim of obtaining a more accurate measurement result.Compared with the traditional sensors,the D-dot circumfer-ential angle sensor can achieve the purpose of multi-angle measurement,and it is also more capable of meeting the demand for the measurement of electrical parameters in all directions in various practical situations.
voltage transformersD-dot sensorsnon-contact measurement
万方数据
维普
